Window screen



Sept. 14 1926.

c. T. OSTERBERG WINDOW SCREEN Filed June 4:, 1923 INVENTOR CTOSTERBERG.BY

TTORNEYS Patented Sept. 14, 1926.

cam. TIRED. os'rnannm,

WINDOW Application filed June 4,

The invention relates to frameless window screens, that is, windowscreens without the usual distending and supporting frame. By reason ofthe omission of the frame as a fixed I part ofthe screen, the latter,when not 1n use may be rolled into asmall package, compact in form,enabling its convenient handling and storage when not in use infulfilling its functions.

The window screen is so constructed that with the employment of somesmall adjunctive devices it may be readily secured in position, and asreadily removed from position, by very simple operations.

Further, the invention embodies devices for exerting a tension upon thescreen after the latter has been placed in position in the window, suchdevices having provisions for adjustment whereby the slack may be eas- Uily taken out of the screen, the tension on the screen caused by suchadjustment maintaining the screen in its operative position.

Another feature residing inv the construction of my improved screen isthat it is it ada ted to beplaced in position from the insi e of thewindow, thus greatly facilitating its application to all windowsirrespective of their altitude above the ground. I Other features of myinvention will be 80 described in detail, and the novelty thereof willbe pointed out in the appended claims.

In the accompanying drawing Figure 1 is a view in elevation lookingthrough a window from the inside, with the sash removed and showing my.improved screen as secured in operative position.

Fig. 2 is an enlarged vertical sectional view transversely through theupper part of the screen, showing the manner 1n which the same issustained in position.

Fig. 3 is a side view of one of the brackets or guides designed to beattached to the blind stop of the windowframe in the location indicatedin Figs. 1 and 2, and form- 5 ing the means for supporting the screen inposition. Referring to the drawing, the numeral indicates a window frameof usual construction, and provided with blind stops- .0 11, one at eachside, and a similar horizontal;

stop 12 at the top of the frame. On the inner faceof the vertical stops11, I attach brackets 13 at opposite points near the top and bottom ofthe frame, brackets 13 being Bl; secured in-position by any suitablemeans.

or MILWAUKEE, wrsconsmf window opening will be PATENT OFFICE.

scnnan.

1923. Serial at. 043,205.

The-screen 14 formed of wire netting is clamped or secured at twoopposite ends to upper and lower cross bars 15 and 16. The constructionof these bars in a preferred form is shown in Fig. 2, in which the upperbar 15 is constituted of a channel bar 17 and I a filler strip 18, aboutwhich the end of the wire netting is partially wrapped and retamed inposition by frlctional engagement when the filler strip is wedged intothe channel. But other methods of securing the opposite ends of the wirenetting to the cross ars may be employed. The length of the wire.nettinghwill be suchthat when it is attached to t e crossbars, the wholeof the covered. Referring again to the brackets 13 the laterallyprojecting portions of the same are notched as at 19 for the receptionand guidance of the straining rods 20, bent at one end and having apivotal or other connection ..with the cross bars 15 and 16. In Fig. 2the shorter bent end of the straining rods is shown as having a.threaded engagement with the bushing 21 seated in the filler strip 18.The longer end of the straining rod is threaded for the reception of athumb nut 22, adapted to be positioned on the rod and have engagementwith one of the lateral extensions of the bracket. When ositionai, thestraining rod 20 will be gui ed by the notches 19 in the extensions ofthe bracket and the alignment of the screen, will be maintained.

In placing the screen the upper cross bar is positioned by placing thesame in contact with the outer surface of the blind sto s 11 and 12,with the straining rods 20 stan ing vertically in the notches of thebrackets 13, and the thumb nuts 22 su ported upon one of the lateralextensions 0 The lower cross bar is similarly laced at the bottom of thewindow frame, w1th the lower edge of the bar resting upon the sill. Theslack in the wire netting is then taken up by adjusting the thumb nuts22 on the straining rods. In such adjustment, the tension to which thewire netting is'subjected brings the selva es of the same into closeengagement wit the blind stops 11, so as to complete the closure andenable the screen to fulfill its functions. At the same time, theadjustment brings the inner faces of the cross bars into engagement withthe blind stops, and holds the cross bars in the same the brackets.

vertical plane. In removing the screen, the tension of the same may berelaxed by rotating the thumb nuts on the straining rods connected tothe cross bar at one end of the screen, but in actual practice it is notnecessary to relax the tension in that manner, inasmuch as the strainingrods may be pulled out of their engagement with the brackets i by meansof their pivoted connection with the cross bars. v The purpose of thethreaded ivotal connection between the bent ends 0 the straining rodsand the cross bars is also to permit the said straining rods to beunscrewed from the cross bars when it is desired to remove the screen atthe end of the sea- 'son. The screen may then be rolled into a v compactform convenient for handling an storage until again needed. This man-'roved screen and the facility with which it may be placed in positionand removed, endow it with material advantages. It is obvious thatmodifications in the arrangement shown may be made without departingfrom the spirit'of my invention. It is also obvious that my improvedconstructionof screen may rea ily and economically be ap plied inscreening porches, by merely positioning suitable stri s in connection.with

' which the screen wil be arranged for cooperation in the simple mannerbefore described.

Having thus described my invention, what I claim and desire to securebyLetters Patent of theUnited States, is

1. A detachable window screen comprising a netting and cross bars towhich opposite ends of the netting are attached, in combination withframe, and means for supporting the screen in engagement with the frame,such means comprising notched brackets upon the frame, and strainingrods connected to the cross bars and sustained in the notches in thebrackets to align the netting with the frame.

2- A detachable window screen comprising a netting and cross bars towhich op.- posite ends of the netting are attached, in

' combination with a frame, and means for supporting the screen upon theframe, such means comprising notched brackets attached to the frame, andstraining rods having a pivotal connection with the cross bars andguided in the notched brackets to align the netting with the frame.

3. -A detachable window screen comprising a nettin and cross barsattached to the opposite en s thereof, in combination with means forsupporting the screen upon the frame, such means comprising straimngrods connected with the cross bars, brackets provided with alignednotches for the reception of the straining rods, and means on the saidand rods'to take up the slack in the netting the maintain the latter inalignment wit frame.

' 4. A detachable window screen comprising a netting and cross barsattached to the opposite ends thereof, in combination with means forsupporting the'screen upon the frame, such means comprising straining.rods bent at one end for engagement with the cross bars, bracketsprovided with aligned notches forreceiving the straining rods, and meanson the latter to take up the slack in the netting and align it wit theframe.

5. A detachable window screen comprising a netting and cross barsattached to the opposite ends thereof, in combination with means forsupporting the screen upon the frame, adapted to be mounted upon theframe, and devices carried by the cross bars for en'- gaging thebrackets to hold the cross bars against the frame and maintain thealignment of the netting with the frame.

6. A detachable window screen comprising a netting and cross barsattached to the opposite ends thereof, in combination with means forsupporting the screen upon the frame, such means comprising bracketssuch means comprising brackets adapted to be mounted upon the frame andadjustable devices connected to. the cross bars and removably supportedupon the brackets to hold the cross bars agamst the frame and take uptheslack in the netting and align the latter with the frame.

7. A detachable window screen comprising a netting and cross barsattached to the opposite ends thereof, in combination with means forsupporting the screen upon the frame, such means comprising strainingmembers pivotally connected to the cross bars and brackets adapted to bemounted upon the frame for engagement with the straining members to holdthe cross bars against the frame and the netting in alignment with theframe when the screen is in position.

In testimony whereof, I have signed my name at Milwaukee, this 28th dayof May, 1923.

C. THEO. OSTERBERG.

